Improvement in harvesters



UNITED STATES WILLIAM ZIMMERMAN, OF OSKALOOSA, IOWA'.

IMPROVEMENT IN HARVESTERS.

Specication forming part of Letters Patent No. 55,758, dated June 19,1866.

To all 'whom t may concern:

Be it known that I, VILLIAM ZIMMERMAN, of Oskaloosa, in the county otMahaska and State of Iowa, have invented a new and ImprovedGavel-Discharging Device for Harvesters; and I do hereby declare thatthefollowing is a full, clear, and exact description thereof, which willenable those skilled in the art to make and use the saine, referencebeing had to the accoinl'ianying drawings, iorming part of thisspecification, in which- Figure lis au end view ot my invention; Fig. 2,a side sectional view of the same, taken in the line a: 10,Fig. 1.

Similar letters of reference indicate corresponding part-s. i

This invention relates to a new and improved gavel-dischargin g devicefor harvesters, whereby gavels of greater or less size may be dischargedas desired, and the device made to operate with certainty and in aperfect manner.

The invention is designed to operatein connection with an endlessapron-a means used on some harvesters for discharging the cnt grain fromthe machine. A

A represents a framing which is attached to one end of the platform of aharvester, and having a roller, a, placed in it, over which the endlessapron works and conveys the out grain to the device. (See Fig. 2.)

ln the framing A there is hung or suspended a iiap or door, B, havingarod, b, projecting from it, on which a counter-poise, O, is fitted.This counterpoise should be adjustable, and it may be made like a nut,to work upon ascrewthread cut on rod b. This eounterpoise is designed tokeep the end of the Hap or door B in contact with a plate, c, in theframing A, as will be fully understood by referring to Fig. 2.

The outer end of the rod b has a cord, el, attached to it, and this cordpasses over a pulley, e, in a bar,f, in the framing A, and is couliectedto a rake, D, having an arm, g, at each end of it, saidarmsbeingpivotedin the framing A, as shown at It h.

By this arrangement it will be seen that when the tlap or door B fallsthe rake D will descend and take its place, and when the tlap or doorrises the rake D will also rise.

The endless apron conveys the cut grain to the device and deposits itupon the `iiap or door B, which retains it until the gravity ot' thegrain will overcome that of the counterpoise O, when the Hap or door Bwill fall or drop and discharge the gavel, the flap or door immediatelyrising after the discharge ot' the gavel.

As the Hap or door drops the rake D also drops, and retains the cutgrain delivered by the apron until the flap or door rises, when the rakealso rises out et' the way.

The size of the gavels may be regulated by adjusting the coun terpoiseO. The farther the latter is turned out on the rod b the greater will hethe weight required to force down the Hap or door B, and consequentlythe larger will be the gavel.

I would remark that I employ a catch, E, at the outer part of theframing A, to enga-ge with the outer end of the rod d of the flap ordoor. This catch serves to hold the tlap-door until a sut'cient quantityot' cut grain is upon it, and then releases the iiap or door suddenly,the rod (l disengagin g itseltl from the catch.

The device may be constructed and applied at a small cost, and usedonany reaper to which an endless carrying-belt may be applied.

Having thus described my invention,l claim as new and desire to secureby Letters Patent- The combination of the door B, screw-rod l),counterpoise O, spring-catch E, cord d, har f, rake D, and pivoted armg, arranged relatively to each other, and with the endlesscarrying-aliron roller a, and operating in the manner and for thepurpose herein specified.

WILLIAM ZIMMERMAN.

Witnesses:

SAMUEL THOMPSON, M. S. JACKSON.

